Firefox crashes repeatedly with no apparent pattern

[David M]

I am not sure how to reproduce this bug, as the crashes seem to happen at random, including at times I have left Firefox open and gone away from my computer only to find it has crashed in my absence. I have a lot of crash reports submitted, but there is no one thing I have found that correlates to this. I have tried running in safe mode, disabling extensions, and making a new profile, but the crashes continue.

I submitted this upstream at https://bugzilla.mozilla.org/show_bug.cgi?id=1198805

If I should provide any additional information, please let me know.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: firefox 40.0.3+build1-0ubuntu0.15.04.1
ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.17.2-0ubuntu1.4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: david 1348 F.... pulseaudio
BuildID: 20150826185640
Channel: Unavailable
CurrentDesktop: KDE
Date: Wed Sep 16 12:59:15 2015
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2015-08-05 (42 days ago)
InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
IpRoute:
 default via 192.168.11.1 dev wlan0 proto static metric 1024
 1.1.1.1 via 192.168.11.1 dev wlan0 proto dhcp metric 10
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.11.0/24 dev wlan0 proto kernel scope link src 192.168.11.130
Locales: extensions.sqlite corrupt or missing
MostRecentCrashID: bp-3fd152b2-3c24-4d24-a5f3-21df12150916
Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
PrefSources:
 prefs.js
 [Profile]/<email address hidden>/defaults/preferences/preferences.js
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=40.0.3/20150826185640
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/25/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET72WW (3.22 )
dmi.board.name: 7459V1X
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6DET72WW(3.22):bd10/25/2012:svnLENOVO:pn7459V1X:pvrThinkPadX200:rvnLENOVO:rn7459V1X:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7459V1X
dmi.product.version: ThinkPad X200
dmi.sys.vendor: LENOVO

[David M (djm14)]

It seems like this is a bug in the Ubuntu package since I have been using the Mozilla release binary for a couple days now with no crashing, including with the same ~/.mozilla/ directory and plugins.

[David M (djm14)]

Took the better part of two days, but the Mozilla release binary finally crashed in a similar fashion. Crash report here: https://crash-stats.mozilla.com/report/index/7f34b16b-a82f-43d8-8aef-a78982150921

Posting this here as well as on Bugzilla in case this is a bug in another package causing Firefox to crash.

[David M (djm14)]

Crashes appear to have stopped since upgrading to Firefox 41.

[David M (djm14)]

Posted too soon. This happened when I was loading a Youtube page.
https://crash-stats.mozilla.com/report/index/c8082530-0a97-4bcb-9fda-0a51f2150926

[David M (djm14)]

Crashes continue, seemingly at random, in Firefox 41.

This crash occurred right after restarting Firefox after a previous crash, without even reopening tabs.
https://crash-stats.mozilla.com/report/index/8755c238-76e3-4b86-92e2-ca33d2151019

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version.

When you test it and it is still an issue, kindly upload the updated logs by running only once:

apport-collect 1496558

and any other logs that are relevant for this particular issue.

[Paul White (paulw2u)]

Upstream report closed "RESOLVED INVALID"
Reporter advised crash due bad ram
Marking "Invalid" as not a Firefox issue